Final answer:
The rollerized trailer is designed to provide stability and reduce bouncing while being towed on the highway.
Step-by-step explanation:
The rollerized trailer is designed for the specific purpose of providing stability and reducing the bouncing of the trailer while it is being towed on the highway. The rollers on the trailer help to evenly distribute the weight and absorb the shocks caused by uneven road surfaces, thus minimizing the bouncing motion. This design feature is particularly beneficial when the trailer is heavily loaded.